Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
CIA-UAP-015 · page 22 of 312
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I I meteorological phenomena like small tornadoes, were collected into a category called OTHER. A separate category for the uncommon natural phenomena associated with light reflections or refractions, such as mirages, I sun dogs, inversion-layer images, and distortions caused by airborne ic.e, was established with the title of LIGHT PHENOMENON. Categories for INSUFFICIENT INFORMATION, PSYCHOLOGICAL MANIFESTATIONS, and I UNKNOWN were provided for the sightings that could not be fitted into the preceding identifications. An explanation of their use follows: I INSUFFICIENT INFORMATION - This identification category was assigned to a report when, upon final con I sideration, there was some essential item of information missing, or there was enough doubt abou._t what data were available to disallow I •identification as a common object or some natural phenomenon. It is emphasized that this I category of identification was not used as a convenient way to dispose of what might be called "poor unknowns", but as a category for I reports that, perhaps, could have been one of several known objects or natural phenomena. No reports identified as INSUFFICIENT INFORMA I TION contain authenticated facts or impressions concerning the sighting that would prevent its I being identified as a known object or phenomenon; PSYCHOLOGICAL MANIFESTATIONS - This identification I category was assigned to a report when, although it was well established that the ob I server had seen something, it was also obvious that the description of the sighting had been overdrawn. Religious fanaticism, a I desire for publicity, or an over-active imagi nation were the most common mental aber rations causing this type of report; I UNKNOWN - This designation in the identification code was I assigned to those reports of sightings wherein the description of the object and its maneuvers could not be fitted to the pattern of any known I object or phenomenon. I For the purposes of this study, two groups of identifications were recognized, the KNOWNS (including all identification categories except the UNKNOWNS) and the UNKNOWNS. I All possible identifications provided in the code system, except INSUFFICIENT INFORMATION and UNKNOWN, could be assigned accord I ing to two degrees of certainty, designated "Certain" and "Doubtful". I I 12